Well, there must to be some truth in the myth of the fragilty of Lotus F1 cars. It´s said that Stirling Moss also refused to drive them after wishbone failures. Also, Lotus is the team with worse ratio of fatalities/races in F1 (although this kind of statistics can be quite unfair)

My brother, over the course of a season, cut 3 of his 4 steel-braided brake lines in his 323 GTX rally car, leading to 3 separate, ah, "moments." The last of which can be seen here https://www.youtube.com/watch?v=82-9MurxaqQ

This was from about 1999, so excuse the terrible quality video (we had no GoPro's back then, and this camera didn't even have a wide-angle lens).

We never did figure out what was cutting the lines. We kept re-securing them up and out of the way, and a check after each incident revealed everything where it should be.